IP lookup: 9.9.9.9

9.9.9.9 is a public IPv4 address. As a 32-bit number it equals 151587081, and its leading octet places it in the traditional class A range.

In classless routing it falls inside 9.9.9.0/24: host addresses 9.9.9.1 to 9.9.9.254, with 9.9.9.255 as that block's broadcast address. The wider 9.0.0.0/8 block shows its position in the IPv4 space.

Its reverse-DNS name is 9.9.9.9.in-addr.arpa — the PTR name a resolver queries to map 9.9.9.9 back to a hostname.

PipeIP recorded Quad9 as the operator of 9.9.9.9 on 2026-08-20, announced by AS19281.

At capture time the PTR record for 9.9.9.9 identified it as part of a public DNS resolver service.

Geolocation, ISP naming and the current PTR answer are live values that can change, so they are loaded below instead of being frozen here.